:root {
    --bg: #05070a;
    --bg-2: #0a0f16;
    --card: #0d131c;
    --card-hi: #111926;
    --card-border: #1c2634;
    --ink: #eef2f7;
    --ink-dim: #8893a4;
    --ink-faint: #4d5666;
    --accent: #5eead4;
    --accent-2: #38bdf8;
    --amber: #f2b544;
    --red: #ef4b53;
    --gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
    --sans: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.5;
    overflow-x: hidden;
  }

  a { color: inherit; text-decoration: none; }
  code, .mono { font-family: var(--mono); }
  ::selection { background: rgba(94, 234, 212, 0.25); color: var(--ink); }
  .container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
  button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

  /* Reveal-on-scroll */
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in-view { opacity: 1; transform: translateY(0); }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
  }

  /* Header */
  header {
    position: sticky; top: 0; z-index: 30;
    backdrop-filter: blur(10px);
    background: rgba(5, 7, 10, 0.78);
    border-bottom: 1px solid var(--card-border);
  }
  .nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
  .logo { font-weight: 800; font-size: 17px; letter-spacing: -0.01em; display: flex; align-items: center; gap: 9px; }
  .logo-mark {
    width: 26px; height: 26px; border-radius: 8px; background: var(--gradient);
    display: flex; align-items: center; justify-content: center; color: #04131a;
  }
  .logo-mark svg { width: 15px; height: 15px; }
  .logo .status-dot {
    width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
    box-shadow: 0 0 0 3px rgba(94,234,212,0.15);
    animation: pulse 2.4s ease-in-out infinite;
  }
  @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

  .nav-links { display: flex; gap: 26px; font-family: var(--mono); font-size: 12.5px; color: var(--ink-dim); }
  .nav-links a { padding: 4px 0; border-bottom: 1px solid transparent; }
  .nav-links a:hover { color: var(--ink); border-color: var(--card-border); }
  .nav-right { display: flex; align-items: center; gap: 14px; }
  .nav-github, .nav-dockerhub {
    display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px;
    border-radius: 8px; border: 1px solid var(--card-border); color: var(--ink-dim);
  }
  .nav-github:hover, .nav-dockerhub:hover { color: var(--ink); border-color: var(--accent); }
  .nav-github svg, .nav-dockerhub svg { width: 16px; height: 16px; }
  .nav-cta {
    display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 8px;
    background: var(--gradient); color: #04131a; font-weight: 700; font-size: 13px;
    font-family: var(--mono); white-space: nowrap;
  }
  @media (max-width: 760px) { .nav-links { display: none; } }

  /* Hero */
  .hero { position: relative; padding: 84px 0 56px; text-align: center; overflow: hidden; }
  #swarm-bg { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55; pointer-events: none; }
  .hero::after {
    content: ""; position: absolute; inset: 0;
    background:
      radial-gradient(circle at 20% 0%, rgba(94, 234, 212, 0.10), transparent 42%),
      radial-gradient(circle at 82% 12%, rgba(56, 189, 248, 0.12), transparent 45%),
      linear-gradient(180deg, transparent 55%, var(--bg) 100%);
    pointer-events: none;
  }
  .hero-inner { position: relative; z-index: 1; }

  .status-pill {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
    border: 1px solid var(--card-border); background: rgba(13,19,28,0.7);
    color: var(--ink-dim); font-family: var(--mono); font-size: 12px; margin-bottom: 28px;
  }
  .status-pill .dot {
    width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
    box-shadow: 0 0 8px rgba(94,234,212,0.7); animation: pulse 2.4s ease-in-out infinite;
  }
  .status-pill b { color: var(--accent); font-weight: 700; }

  h1 {
    font-size: clamp(32px, 5.4vw, 58px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
    max-width: 820px; margin: 0 auto 20px; text-wrap: balance;
  }
  h1 .word { display: inline-block; opacity: 0; transform: translateY(0.5em); filter: blur(6px); animation: word-in 0.7s cubic-bezier(.2,.8,.2,1) forwards; }
  h1 .accent { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
  @keyframes word-in { to { opacity: 1; transform: translateY(0); filter: blur(0); } }
  @media (prefers-reduced-motion: reduce) { h1 .word { opacity: 1; transform: none; filter: none; animation: none; } }

  .hero p.lede { max-width: 560px; margin: 0 auto 34px; color: var(--ink-dim); font-size: clamp(15px, 1.6vw, 16.5px); }
  .hero-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }

  .hero-stats { display: flex; justify-content: center; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 44px; }
  .hero-stat {
    display: inline-flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 13px;
    color: var(--ink-dim); transition: color .2s ease; opacity: 0; transform: translateY(4px);
  }
  .hero-stat.is-loaded { opacity: 1; transform: none; transition: opacity .5s ease, transform .5s ease, color .2s ease; }
  a.hero-stat:hover { color: var(--ink); }
  .hero-stat-icon { width: 15px; height: 15px; color: var(--ink-faint); flex: none; transition: color .2s ease; }
  a.hero-stat:hover .hero-stat-icon { color: var(--accent); }
  .hero-stat-n { font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
  .hero-stat-sep { width: 1px; height: 13px; background: var(--card-border); }
  @media (prefers-reduced-motion: reduce) { .hero-stat { transition: none; opacity: 1; transform: none; } }

  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 10px;
    background: var(--gradient); color: #04131a; font-weight: 700; font-size: 13.5px;
    font-family: var(--mono); white-space: nowrap; box-shadow: 0 8px 24px -8px rgba(56, 189, 248, 0.4);
    position: relative; overflow: hidden;
  }
  .btn-primary .ok-flash {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    background: var(--gradient); color: #04131a; transform: translateY(100%); transition: transform .25s ease;
  }
  .btn-primary.copied .ok-flash { transform: translateY(0); }

  .btn-secondary {
    display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 10px;
    border: 1px solid var(--card-border); font-weight: 600; font-size: 13.5px; color: var(--ink); white-space: nowrap;
  }
  .btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

  /* Terminal window */
  .term {
    max-width: 600px; margin: 0 auto; text-align: left; background: var(--card);
    border: 1px solid var(--card-border); border-radius: 12px; overflow: hidden;
    box-shadow: 0 30px 60px -30px rgba(0,0,0,0.6);
  }
  .term-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--card-hi); border-bottom: 1px solid var(--card-border); }
  .term-dot { width: 10px; height: 10px; border-radius: 50%; }
  .term-dot.r { background: var(--red); } .term-dot.y { background: var(--amber); } .term-dot.g { background: #2fce6a; }
  .term-title { flex: 1; text-align: center; font-family: var(--mono); font-size: 12px; color: var(--ink-faint); }
  .term-copy { border: 1px solid var(--card-border); border-radius: 6px; color: var(--ink-dim); font-family: var(--mono); font-size: 11px; padding: 3px 8px; }
  .term-copy:hover { color: var(--ink); border-color: var(--accent); }
  .term-body { padding: 18px 20px 22px; font-family: var(--mono); font-size: 13px; line-height: 1.8; min-height: 108px; }
  .term-body .prompt { color: var(--accent); }
  .term-body .out { color: var(--ink-dim); }
  .term-body .ok { color: var(--accent); }
  .cursor { display: inline-block; width: 7px; height: 15px; background: var(--accent); vertical-align: text-bottom; animation: blink 1s step-end infinite; }
  @keyframes blink { 50% { opacity: 0; } }

  /* Section shared */
  section { position: relative; padding: 76px 0; }
  .eyebrow-code { font-family: var(--mono); font-size: 12.5px; color: var(--accent); margin-bottom: 12px; letter-spacing: 0.02em; }
  .section-head { max-width: 620px; margin: 0 auto 40px; text-align: center; }
  .section-head h2 { font-size: clamp(24px, 3.6vw, 34px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; text-wrap: balance; }
  .section-head h2 .accent { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .section-head p { color: var(--ink-dim); font-size: 14.5px; }

  /* Live demo shell — real captured swarmdash pages shown in a scaled iframe */
  .mock-shell {
    max-width: 960px; margin: 0 auto; background: var(--card); border: 1px solid var(--card-border);
    border-radius: 14px; overflow: hidden; box-shadow: 0 40px 90px -40px rgba(0,0,0,0.7);
  }
  .mock-bar { display: flex; align-items: center; gap: 10px; padding: 11px 14px; background: var(--card-hi); border-bottom: 1px solid var(--card-border); }
  .mock-url {
    flex: 1; margin: 0 8px; padding: 5px 12px; border-radius: 6px; background: var(--bg-2);
    border: 1px solid var(--card-border); font-family: var(--mono); font-size: 11.5px; color: var(--ink-faint); text-align: center;
  }
  .mock-expand {
    flex: 0 0 auto; display: flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 6px;
    background: var(--bg-2); border: 1px solid var(--card-border); font-family: var(--mono); font-size: 11.5px;
    color: var(--ink-dim); cursor: pointer; transition: color .2s ease, border-color .2s ease; white-space: nowrap;
  }
  .mock-expand:hover { color: var(--ink); border-color: var(--accent); }
  .mock-expand svg { width: 12px; height: 12px; flex: 0 0 auto; }
  .mock-tabs { display: flex; border-bottom: 1px solid var(--card-border); background: var(--card-hi); overflow-x: auto; }
  .mock-tab { flex: 1; padding: 11px 10px; text-align: center; color: var(--ink-faint); font-family: var(--mono); font-size: 12px; border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color .2s ease; white-space: nowrap; }
  .mock-tab:hover { color: var(--ink-dim); }
  .mock-tab.active { color: var(--ink); border-color: var(--accent); }
  @media (max-width: 700px) { .mock-tab { font-size: 10px; padding: 10px 8px; } .mock-expand span { display: none; } .mock-expand { padding: 6px 8px; } }

  .snap-frame-wrap { position: relative; width: 100%; overflow: hidden; background: #eef1f5; }
  .snap-frame { display: block; width: 1440px; height: 900px; border: 0; transform-origin: top left; background: #eef1f5; }
  .snap-frame-wrap.loading::after {
    content: "loading snapshot…"; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    background: var(--bg-2); color: var(--ink-faint); font-family: var(--mono); font-size: 12.5px;
  }
  .demo-note { color: var(--ink-faint); font-size: 13px; text-align: center; max-width: 560px; margin: 18px auto 0; }

  /* Features marquee */
  .marquee-wrap { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent); mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent); }
  .marquee-row { display: flex; gap: 12px; width: max-content; padding: 6px 0; }
  .marquee-row.a { animation: scroll-left 42s linear infinite; }
  .marquee-row.b { animation: scroll-right 48s linear infinite; margin-top: 12px; }
  .marquee-wrap:hover .marquee-row, .marquee-wrap:focus-within .marquee-row { animation-play-state: paused; }
  @keyframes scroll-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }
  @keyframes scroll-right { from { transform: translateX(-50%); } to { transform: translateX(0); } }
  @media (prefers-reduced-motion: reduce) { .marquee-row.a, .marquee-row.b { animation: none; } .marquee-wrap { overflow-x: auto; } }

  .chip {
    flex: none; display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 999px;
    background: var(--card); border: 1px solid var(--card-border); font-size: 13.5px; font-weight: 600;
    color: var(--ink-dim); transition: color .2s ease, border-color .2s ease, background .2s ease;
  }
  .chip .n { font-family: var(--mono); font-size: 10.5px; color: var(--accent); }
  .chip:hover, .chip.active { color: var(--ink); border-color: var(--accent); background: var(--card-hi); }

  .feat-detail {
    max-width: 620px; margin: 34px auto 0; text-align: center; min-height: 56px;
    padding: 18px 26px; border: 1px solid var(--card-border); border-radius: 14px; background: var(--card);
  }
  .feat-detail .title { font-family: var(--mono); font-size: 12.5px; color: var(--accent); margin-bottom: 6px; }
  .feat-detail .desc { color: var(--ink-dim); font-size: 14.5px; }

  /* Architecture */
  .arch-wrap { display: grid; grid-template-columns: 0.85fr 1fr; gap: 52px; align-items: center; }
  @media (max-width: 860px) { .arch-wrap { grid-template-columns: 1fr; } }
  .arch-copy h2 { font-size: clamp(24px, 3.6vw, 32px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; text-wrap: balance; }
  .arch-copy p { color: var(--ink-dim); font-size: 15px; line-height: 1.65; max-width: 420px; }
  .arch-copy code { color: var(--ink); background: var(--card); border: 1px solid var(--card-border); padding: 1px 6px; border-radius: 5px; font-size: 0.92em; }

  .arch-diagram { background: var(--card); border: 1px solid var(--card-border); border-radius: 16px; padding: 30px 26px; }
  .arch-node { display: flex; align-items: center; gap: 12px; background: var(--bg-2); border: 1px solid var(--card-border); border-radius: 10px; padding: 12px 14px; font-family: var(--mono); font-size: 12.5px; }
  .arch-node .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gradient); flex: none; }
  .arch-node b { color: var(--ink); font-weight: 600; }
  .arch-node span.tag { color: var(--ink-faint); margin-left: auto; font-size: 11px; }

  .arch-link { position: relative; height: 34px; }
  .arch-link .line { position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: var(--card-border); transform: translateX(-50%); }
  .arch-link .flow { position: absolute; left: 50%; width: 6px; height: 6px; border-radius: 50%; background: var(--gradient); transform: translateX(-50%); animation: flow-down 1.8s linear infinite; }
  .arch-link .label { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: var(--card); padding: 0 8px; font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); white-space: nowrap; }
  @keyframes flow-down { 0% { top: -6px; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { top: 100%; opacity: 0; } }

  .arch-bus { position: relative; height: 22px; margin: 0 6%; }
  .arch-bus .bar { position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--card-border); }
  .arch-bus .tick { position: absolute; top: 0; width: 2px; height: 22px; background: var(--card-border); }
  .arch-bus .flow { position: absolute; top: -2px; width: 6px; height: 6px; border-radius: 50%; background: var(--gradient); animation: flow-across 2.6s ease-in-out infinite; }
  @keyframes flow-across { 0% { left: 0%; opacity: 0; } 8% { opacity: 1; } 46% { left: 50%; opacity: 1; } 92% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
  @media (prefers-reduced-motion: reduce) { .arch-link .flow, .arch-bus .flow { animation: none; opacity: 0; } }
  .arch-fanout { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
  @media (max-width: 520px) { .arch-fanout { grid-template-columns: 1fr; } }

  /* Free */
  .free-hero { text-align: center; }
  .free-tags { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
  .free-tag { position: relative; font-family: var(--mono); font-size: 13px; color: var(--ink-faint); padding: 7px 14px; border: 1px solid var(--card-border); border-radius: 999px; }
  .free-tag::after {
    content: ""; position: absolute; left: 8%; right: 8%; top: 50%; height: 1.5px; background: var(--red);
    transform: scaleX(0); transform-origin: left; transition: transform .5s ease;
  }
  .free-tag.struck::after { transform: scaleX(1); }

  .free-price { font-family: var(--mono); font-weight: 700; line-height: 1; margin-bottom: 14px; }
  .free-price .amt { font-size: clamp(56px, 11vw, 108px); background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .free-price .per { font-size: 16px; color: var(--ink-dim); display: block; margin-top: 6px; font-weight: 600; }
  .free-hero p { color: var(--ink-dim); max-width: 480px; margin: 0 auto; font-size: 15px; }

  .compare-toggle { display: flex; justify-content: center; gap: 8px; margin: 44px 0 22px; }
  .toggle-btn { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--card-border); font-family: var(--mono); font-size: 12.5px; color: var(--ink-dim); }
  .toggle-btn.active { color: #04131a; background: var(--gradient); border-color: transparent; font-weight: 700; }

  .compare-panel { max-width: 560px; margin: 0 auto; }
  .compare-row {
    display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 13px 0;
    border-bottom: 1px solid var(--card-border); font-size: 14px; opacity: 0; transform: translateY(6px);
    animation: row-in .4s ease forwards;
  }
  .compare-row:last-child { border-bottom: none; }
  .compare-row .label { color: var(--ink-dim); }
  .compare-row .val { font-family: var(--mono); font-size: 12.5px; text-align: right; }
  .compare-row .val.locked { color: var(--amber); }
  .compare-row .val.free { color: var(--accent); }
  @keyframes row-in { to { opacity: 1; transform: translateY(0); } }

  /* Security */
  .security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; max-width: 900px; margin: 0 auto; }
  @media (max-width: 760px) { .security-grid { grid-template-columns: 1fr; } }
  .security-item {
    background: var(--card); border: 1px solid var(--card-border); border-radius: 12px; padding: 17px 19px;
    transition: border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .security-item:hover {
    border-color: var(--accent); background: var(--card-hi); transform: translateY(-3px);
    box-shadow: 0 14px 28px -18px rgba(94, 234, 212, 0.35);
  }
  .security-item .label { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 13.5px; margin-bottom: 7px; transition: color .2s ease; }
  .security-item:hover .label { color: var(--accent); }
  .security-item .label svg { width: 15px; height: 15px; color: var(--accent); flex: none; }
  .security-item p { color: var(--ink-dim); font-size: 13px; line-height: 1.55; }
  @media (prefers-reduced-motion: reduce) { .security-item { transition: none; } .security-item:hover { transform: none; } }
  .security-cta { display: flex; justify-content: center; margin-top: 32px; }

  /* Install */
  .install-wrap { max-width: 600px; margin: 0 auto; }
  .steps { display: flex; flex-direction: column; gap: 0; margin-top: 18px; }
  .step { display: flex; align-items: center; gap: 10px; padding: 7px 0; font-family: var(--mono); font-size: 12.5px; color: var(--ink-faint); opacity: 0.4; transition: opacity .3s ease, color .3s ease; }
  .step.done { opacity: 1; color: var(--ink-dim); }
  .step .box { width: 14px; height: 14px; border-radius: 4px; border: 1px solid var(--card-border); flex: none; display: flex; align-items: center; justify-content: center; font-size: 10px; color: var(--accent); }
  .step.done .box { border-color: var(--accent); background: rgba(94,234,212,0.1); }

  /* CTA */
  .cta { text-align: center; background: var(--card); border: 1px solid var(--card-border); border-radius: 22px; padding: 52px 32px; }
  .cta h2 { font-size: clamp(24px, 3.6vw, 34px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; text-wrap: balance; }
  .cta p { color: var(--ink-dim); margin-bottom: 26px; max-width: 480px; margin-left: auto; margin-right: auto; font-size: 14.5px; }
  .cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

  footer { border-top: 1px solid var(--card-border); padding: 40px 0 28px; }
  .footer-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
  .footer-row .logo { margin: 0; }
  .footer-links { display: flex; gap: 20px; font-size: 13px; color: var(--ink-dim); flex-wrap: wrap; }
  .footer-links a:hover { color: var(--ink); }
  .footer-note { color: var(--ink-faint); font-size: 12px; margin-top: 18px; text-align: center; }